Flaxseed is the most concentrated source of of SDG lignans - phyonutrients that exhibit strong antioxidant properties and can have a balancing effect on hormones. Disclaimer These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease. Product Features : Spectrum Essentials Organic Flax Oil With Ultra Lignans Directions Be sure to shake the bottle vigorously upside down for a few minutes before each use so that the lignans are well dispersed throughout the oil.